发明名称 |
CONTROL OF EARTH COUPLING OF A SEISMIC VIBRATOR |
摘要 |
A device maintains the coupling between the earth (14) and the coupling plate (18) of a seismic vibrator. It is used in seismic prospecting operations and the coupling is maintained continuously throughout operation of the vibrator over a wide range of frequencies, surface conditions, etc. using a simple construction. The plate is coupled to the earth's surface and vibrated and the pressure of the earth on the plate is determined. The amplitudes of the coupling plate vibrations are reduced when the pressure approaches zero or falls below a defined value. |
申请公布号 |
AU4917979(A) |
申请公布日期 |
1980.01.31 |
申请号 |
AU19790049179 |
申请日期 |
1979.07.24 |
申请人 |
EXXON PRODUCTION RESEARCH CO. |
发明人 |
JOSEPH FRANCIS MIFSUD;JAMES EDWARD RICKENBACKER |
分类号 |
G01V1/047;G01V1/155 |
主分类号 |
G01V1/047 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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